Film splicer



Jan. 15, 1946. P. BAIA 2,392,965

FILM SPLICER I Filed June 20, 1944 2 sheets-sheet 1 INVENIOR.

Attorney Jan. 15, 1946. r BAIA 2,392,965

' FILM SPLICER Filed- June 20, 1944 2 Sheets-Sheet 2 IN VEN TOR.

Attonney Patented Jan..15, 1946 UNITED STATES PATENT OFFICE I 2,392,9s5 h FILM SPLICER Philip Baia, Highland Park, Mich. Application June 20, 1944, Serial 190.541.193 j 2 Claims.

This invention relates to improvements in splicers, and refers particularly to splicers for motion picture film. The invention aims, among other things, to provide a splicer for holding the two ends of the film to be joined together; for trimming the two ends prior to making the joint; for scraping the emulsion from one of the ends where adhesive is to be applied; and for holding the two ends of the film in intimate contact after the adhesive has been applied and during the setting of the joint.

Another object of the invention is to provide a splicer having a fixed base, a stationary plate thereon, and a hinge pin extendin the full width of the base which extends through downturned ears formed on opposite sides of two clamping plates and a supporting plate in such a manner that the said pin afiords rigid and ample support for the movable plates to insure accuracy of movement.

A further object of the invention is to provide a splicer having a scraper mounted for movement on one of the clamping plates so that when the scraper is turned in one direction it may be employed to contact one side of a piece of fihn and remove the emulsion therefrom prior to an adhesive being applied thereto; moreover the scraper is so arranged that it may be turned back out of the way when not in use.

' Having thus briefly stated some of the objects and advantages of the invention I will now proceed to describe it in detail with the aid of the accompanying drawings, in which: Figure 1 illustrates a plan view of the invention with the clamping plates and the supporting plate turned vertically upward.

Figure 2 is a'view similar to Figure 1 but showing the clamping plate over the stationary plate downturned and a piece of film engaged between the said Plates.

Figure 3 is similar to Figure 2 except thatthe scraper is shown in operative position;

' Figure 4 is another plan view showing the supporting plate and both the clamping plates downturned in position to support two film ends in overlappingrelation while the adhesive is drymg.

Figure 5 is a planvview showing the clamping plates turned vertically upward for the removal of the film after the joint has been made.

'Figure's'6, 7 and 8 are sections on the lines E--6, 1-1 and 8-8 respectively of Figure 4, the sections shown in Figures 7 and 8 being enlarged. Figure!) is a section on the line h 8 Qf.Fig ure 8.

Referring to the drawings," I designates a base having downturned sides 2 the lower extremities of which have; outwardly projecting flanges 3 which rest upon and are suitably secured to a subbase 4. The ends 5 of the base I arelal so downturned and terminate above the subbase. Extending through and between the downturned sides 2 adjacent the back ofthe spliceris a hinge pin 6 the ends of which are usually riveted over against the outer faces of the sides "2 to hold the pinrigidand'immovable.' H Formed in the base I intermediatelyfof its length and width is an opening fl. Projecting upwardly from the top of the base along one lateral margin are two spaced guides 8 and 9, and projecting upwardly along aportion of the other lateral margin is a vertical guide ID. -The guides 8 and 9 form stops against which the outer 'margin of the stationa'ry'plate l l rests which extends'partway across the base. I and is weldedor otherwise suitably secured thereon. The inner margin of the plate II is positioned over. the opening Land provided on the said plate are transversely aligned projections Ila t5 engage conventional perforations B formed in one piece A of the film to be spliced. V g i A clamping plate I2 is' provided, on opposite sides with ears l3 through which the hinge pin Sextends thereby mounting the said plate, piv'o tally with. its outer ear contiguous to the "inner face of one of the sides 2 and its inner ear encircling the hinge pin substantially centrally of its length. The width of the clamping plate 12 is such that when it is downturned to bear upon thetop of the stationary plate I l its outer lateral margin rests against the "guide 9, and its opposite margin is inwardly spacedfrom and parallel with the inner margin of the said stationary plate so that a ledge .30 of uniform width projects along the inner edge of the said stationary plate. Formed throu h the plate l2 are" openings I 2a intowhich the projections Ila extend when the said plate isdownturned to-hold the lengthiof film A immovable between the two plateslland l2." g

A second clampin plate I 4 having downturned ears 15 through which the hinge pin 6 extends is also pivoted on the latter and is's' positioned that the outer face of one of the ears l5 l es contiguous to the outer face of the inner ear l3 and the outer face of the otherear '15 lies against the inner face of one ofthe sides 2. Thus the plat'es-i'land M are held againstaxial movement along the hinge pin by contact of their ears with one; another and with the inner faces of the sides -2. r A pivoted supporting plate It adapted to rest upon the base I beneath the clamping plate: I4 has ears I1 through which the hinge pin 6 extends; the outer faces of these ears H are contiguous to the inner faces of the ears I5.

The width of the bearing plate I is such that when it is downturned it rests upon the base I in horizontal alignment with the stationary plate I! with its inner lateral margin adjacent and in shearing.. engagement. with the. inner lateral margin of thesstationaryplate and its opposite margin adjacent the guide It). The width of the second clamping plate I4 is such that one lateral mar-- gin, when the plate is downturned, moves in substantial contact with the saidguide I0 and its opposite margin is parallel and in shearing engagement with the adjacent side of the platel'2." Extending upwardly from the supporting iplate- Ifi are transversely spaced projections "id, in alignment with the projections I la when the'said plate Ifitis restingupon the basealeandliormedthrough the clamping plate H are openings iI-llaato receive thersaid. projections. The-latterare to engage conventional perforations D in alength of film C find retain the latter in alignmentwith the length of ,A. Due to the .lateralspacing .of the two pairsioi shearing-edges ofetheplates I l .a it, ands; andalll the film ends when cut as. hereinaiteridescribed are in overlappin relation.

Pl-voted. .on' .the inner gface of the downturned end 5 remote from the hinge pinfi are twoelatches .28 and ll whim-" roject upwardly. throughiopeningsM-Land iliormed through-the base I. The

latchill isalso adapted-11:0 extendthrougn an opening-24 intheclampingplate IZto engage the upper taceoof thelatter andretain iitin contact with the stationarvplate Ii. The latch 2! is adapted. .to proiect through aligned "openings. 25 and 25- formed through the. supporting plate I8 and theclemping rplate IA respectively. .and engages theuppenface of thelatterito hold the two plates in contact withone another and in horizon lignment With-thepIateS'IZ i and I I respectively: Mountedintermediately. .oflits length on the underside J t -the base 'I. is. a resilient. member 21 having laterally. projecting :aiims .18 'each' of whichengagesaprojection ZIlaaor 21a onLone of the latches :20 Jon .Zlianditendstoturn its latch about its-piuot 'axisto engage theiplate 1'2 c 14..

To release the. plates. it is merely necessary. to

move .the latches -:Pivot 1ly. outward.

Projecting .upwardly. from the. clamping. plate I2 erotica-spaced brackets-3| to which oppos te extremities of arod J32 Textendlngat rightan to the hinge pir'rB'ar-e secured. Mounted for axial and pivotal. movement on .the .rod 32Tis a substantiallyeu shaped mountingjS havinga scraper 34 secured-thereon and facing. outwardly from th rod 32; Whenth mountingis turned to the positio'n shown in Figure 3-the-scraper. may ber ciprocate 1axially. on .the .rod.'32 aIongthe ledge toremove theemuls'ionfimh the .piece of mm A -restingthereon for removal of theemulsion is necessarysin-ordenior.anadhesiveto firmly. ad here thereto. After the scraper has served its purpose it is .moved. pivotally. about vthe axis of .Ith'e rod.32:-to:a-position; Eigures.- -2 =and. .4 whereltis-outoi themam.

The operation of. .theinvention is b'riefiyas f0llows: .One filmend A. isplaced. on the stationary plate II with the projection... I-Ia-- extendin through the perforations B andntheiend .ot the film projecting laterally inward somewhat beyond e en -flf-the-platel I. Theclamp i gmlatei2 is then moved-down andengaged bythe latch 1,0,

Then the bearing plate I5 is moved pivotally downward into contact with the base I. During the completion of this movement the end of the film A is sheared oiT between the adjacent faces of the stationary plate I I and the supporting plate I-6. The scraper 34 is then employed in the manner already described. The other film end C is then engaged between the supporting plate I6 and the clamping plate I4 with the projections Ito extending through perforations D in the film so thatthe two film ends 'areiheld in alignment. Meanwhile downward movementof the clamping plate I4 onto the supporting plate It when the latter is resting upon the base I shears off the end'of the film C betweenthe adjacent edges of the plates I4 and I2. After adhesive has been applied tothe upper side of the film end A resting upon-theledge 30 and the plates I6 and I4 have been moved down onto the base I the latches 20 and-2I plus the overlapping relation of the clamping plate .14 relative .to the stationary.- ,plate I I insures that the .ends of the two pieces of film Aand Careheldin intimate contact while the adhesive .dries..

While in..the.. foregoing the preferred.embodiment ofLthe invention has beendescribed .and shown it is unde'rstoodthat the invention is susceptible .to such alterations and modifications as fall .within the scope of the appended'claims.

WhatIfclaimis: 1. A film splicer includinga base, a hinge pin mounted thereon and extendingacross one side thereoha stationaryplate fixed on the base and extending partway. across it, a supporting, plate pivoted on the pin adapted "tobe downturncd to rest upon the base with one margin extending at right angles to the. pin axis contiguous to the inner lateral margin of thestationaryplate, two clamping. plates pivoted on said pin one adapted to be downturned onto the stationaryplate and theotherontothe supporting plate, said clam i1:ig..plates havingtheir adjacent margins contignous. when .said .platesiare in transverse align ment, the last .named adjacent margins being transversely. stepped Lrelative, to thev contiguous margins oithe stationary andisupportingplates,

therebeing .two sets .of openings, one set in the baseandclamping plate adjacent the stationary plate and .theother set .beingin theob'ase, sup,- porting ,plate and adjacent clamping plate. and latches, respectively pivotedon the underside of the base adjacent thesets oiregisteringopenings to extend through each registering ,set of, open.- ings, .v a spring. mounted intermediately of, its length-0n the underside .oithebase, and a projection on each latchengaged. by one extremity of .the spring whereby the spring-tends to .move

saidlatches pivotally to engage theupper faces of theclam-ping platesv and hold the latter in firm engagement with the plates beneath t-h'em.

2. .In a film splicer, the combination of a base having vertical .downturned walls along. opposite sides which extend rearwardly beyond said. base, a hinge pin supported. at its extremitiesb'y the rearwardly projecting portions -of said walls; the front extremity of saidibase beingalso. downturned to form a front wall,' a stationar plate fixedeupon said. base and extending partway across the latter, .a supportingplate pivoted on saidgpin to be downturned onto the other side of the base with one longitudinal margin. contiguous tothe inner lateral.marginot the stationary plate, two clamping plates pivoted on thehinge pin-one adaptedv to be downturned onto the stati'onary plate and theother ontothe supporting,

plate, the adjacent edges of the clamping plates being contiguous when said plates are in transverse alignment, the contiguous margins of the clamping plates being laterally stepped relative to the contiguous margins of the supporting and stationary plates, the pivot mountings of the clamping plates and the supporting plate being positioned relative to one another and to said the underside of the base, latches pivoted on the inner face of the front wall, one latch extending through the registering openings in the base and the clamping plate and being adapted to hold said clamping plate in firm engagement with the stationary plate, the other latch extending through the other opening in the base and being adapted to project through the openings in the supporting plate and the other clamping plate to hold the latter in firm engagement with said supporting plate, and a projection on each latch, said projections being engaged by opposite ends of the spring whereby said latches are urged toward their clamping plate engaging positions.

PHILD? BAIA. 

